Operations Reports

In this section

Single-Source Contingency

See the ISO New England Inc. Transmission, Markets, and Services Tariff, Attachment G Procedure to Protect for the Loss of Phase II Imports, which describes the process used by ISO New England, New York ISO, and PJM to monitor their respective systems and provide the data required by ISO New England to calculate import limits on the Phase I/II high-voltage direct-current interconnection between it and Hydro-Québec TransÉnergie.

Download a report on single-source contingencies, limits placed on external and generation interfaces in which losing a single piece of equipment could cause a loss of 1,200 or greater megawatts (MW).

The single-source contingency limit is the base limit plus the authorized margin multiplied by the margin sensitivity. The NY Central-East single-source contingency limit is based on the authorized margin divided by the Distribution Factor (0.30). The margin associated with NY Station Voltages has been converted to MW.

Note: The compilation of this data has various origins and is provided for the convenience of the New England market participants. The ISO does not assume responsibility for the accuracy.

Single-Source Contingency
Description Timestamp Download
Current - December 12, 2019 12/12/2019 04:00 PM EST CSV
December 11, 2019 12/11/2019 11:55 PM EST CSV
December 10, 2019 12/11/2019 12:00 AM EST CSV
December 09, 2019 12/10/2019 12:00 AM EST CSV
December 08, 2019 12/09/2019 12:00 AM EST CSV
December 07, 2019 12/07/2019 11:55 PM EST CSV
December 06, 2019 12/07/2019 12:00 AM EST CSV
December 05, 2019 12/06/2019 12:00 AM EST CSV
December 04, 2019 12/04/2019 11:55 PM EST CSV
December 03, 2019 12/04/2019 12:00 AM EST CSV
December 02, 2019 12/03/2019 12:00 AM EST CSV
December 01, 2019 12/02/2019 12:00 AM EST CSV
November 30, 2019 11/30/2019 11:55 PM EST CSV
November 29, 2019 11/30/2019 12:00 AM EST CSV
November 28, 2019 11/29/2019 12:00 AM EST CSV